The mole and mole equations

What is Avogadro’s constant?

What is Avogadro’s constant?

6.02 × 10²³

What is one mole?

a quantity of a substance that contains Avogadro’s number of particles

Why is Avogadro’s constant a mole of any substance?

• the mass of that number of atoms or molecules of any substance is exactly the same number of grams as the relative atomic mass.

What is the formula triangle to calculate the number of moles?

What part in a chemical formula tells you how many moles there are?

• The big numbers before a chemical formula

• If there is no number assume it is one

How can you find the balanced equation of a reaction from its masses?

1. Find the number of moles

2. Divide the number moles for each substance by the smallest number of moles in the reaction

3. Multiply all the numbers by the same value until all numbers are whole numbers

4. Form the balanced equation